wideband replacing narrowband tunable?

[ryanw2007]

ok so what i did was i cut my narrowband off and rewired in a wideband o2 sensor. now when i went to tune it with my safp i was getting all sorts of crazy readings from almost 5 volts to .23 volts on my data logger using mmcd. and yes i was watching the o2-r not the front . but my main question is i have been searching for anyone that has done this and i cant see anyone that has just replaced the narrowband with a wideband. does it not work or is there anyway i can make it work cause i am running extremely rich and im going trhough spark plugs by the week any help would be great!

 

[eclipsegst1990]

You'll need some kind of HEX editor and/or TunerPro with an Ostrich emulator or chip burner. Use the following information (allows ECU too read 0-5V for logging and calculations):

http://www.dsmtuners.com/forums/showthread.php?p=151250414#post151250414

Best I can do right now since Im typing on the fly. You need a sensor that shows 2.50V as 14.7afr. Not sure which brand sensor is calibrated with this median though.

 

[eclipsegst1990]

Check this too for more Tunerpro usage:

http://www.labattz.com/phpBB2/viewtopic.php?t=11843&highlight=tunerpro

 

[ryanw2007]

what if i dont have a eprom ecu? what are some of the other options? im kinda confused at what the ostrich and tuner pro is? help!!!

 

[eclipsegst1990]

My only other suggestion would be to purchase an AEM Wideband Controller Module with the wideband sensor. It features both 0-5v calibrated output and 0-1v calibrated output to mimic the factory narrow band sensor, eliminating the chance of a factory computer issuing a trouble code. You will still get the wideband accuracy, but it will be scaled down so your factory computer could read the signal. Later, when you're ready, you can use the 0-5v channel and splice that into your ecu through the NB sensor wire and update your ECU code to understand the 0-5v signal, but this will require a HEX editor as stated before.

Using a chip burner or the Ostrich along with a HEX editor or Tunerpro allows you to change the ECU HEX code yourself instead or ordering pre-burned chips (which are excellent too). The Ostrich replaces the Eprom in your ECU with flashable memory allowing you to change the vehicle's ECU code multiple times. Of course you need to know what you are doing since YOU are now in control of YOUR vehicle's ECU and can change just about anything. Of course, you need an eprom ECU though. There's a lot of info on this subject now and I would suggest researching this if you decide to purchase a stand alone system someday. I have the unit and it is a great device. It also does speed density and/or will allow you to use a 1g, 2g, EVO, or Chevy MAF sensor. You can program you own stutterbox, phantom knock code, boost gauge to knock gauge conversion, injector compensation/deadtime, and many others. I hope that answers your question.